Measurement of the Z→ττ cross section with the ATLAS detector

The Z→ττ cross section is measured with the ATLAS experiment at the LHC in four different final states determined by the decay modes of the τ leptons: muon-hadron, electron-hadron, electron-muon, and muon-muon. The analysis is based on a data sample corresponding to an integrated luminosity of 36pb...

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Autor principal: Aad, G.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_15507998_v84_n11_p_Aad
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_15507998_v84_n11_p_Aad2023-10-03T16:24:29Z Measurement of the Z→ττ cross section with the ATLAS detector Aad, G. The Z→ττ cross section is measured with the ATLAS experiment at the LHC in four different final states determined by the decay modes of the τ leptons: muon-hadron, electron-hadron, electron-muon, and muon-muon. The analysis is based on a data sample corresponding to an integrated luminosity of 36pb - 1, at a proton-proton center-of-mass energy of √s=7TeV. Cross sections are measured separately for each final state in fiducial regions of high detector acceptance, as well as in the full phase space, over the mass region 66-116 GeV. The individual cross sections are combined and the product of the total Z production cross section and Z→ττ branching fraction is measured to be 0.97±0.07(stat)±0.06(syst)±0.03(lumi)nb, in agreement with next-to-next-to-leading order calculations. © 2011 CERN. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15507998_v84_n11_p_Aad
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The Z→ττ cross section is measured with the ATLAS experiment at the LHC in four different final states determined by the decay modes of the τ leptons: muon-hadron, electron-hadron, electron-muon, and muon-muon. The analysis is based on a data sample corresponding to an integrated luminosity of 36pb - 1, at a proton-proton center-of-mass energy of √s=7TeV. Cross sections are measured separately for each final state in fiducial regions of high detector acceptance, as well as in the full phase space, over the mass region 66-116 GeV. The individual cross sections are combined and the product of the total Z production cross section and Z→ττ branching fraction is measured to be 0.97±0.07(stat)±0.06(syst)±0.03(lumi)nb, in agreement with next-to-next-to-leading order calculations. © 2011 CERN.
format JOUR
author Aad, G.
spellingShingle Aad, G.
Measurement of the Z→ττ cross section with the ATLAS detector
author_facet Aad, G.
author_sort Aad, G.
title Measurement of the Z→ττ cross section with the ATLAS detector
title_short Measurement of the Z→ττ cross section with the ATLAS detector
title_full Measurement of the Z→ττ cross section with the ATLAS detector
title_fullStr Measurement of the Z→ττ cross section with the ATLAS detector
title_full_unstemmed Measurement of the Z→ττ cross section with the ATLAS detector
title_sort measurement of the z→ττ cross section with the atlas detector
url http://hdl.handle.net/20.500.12110/paper_15507998_v84_n11_p_Aad
work_keys_str_mv AT aadg measurementofthezttcrosssectionwiththeatlasdetector
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